Fujian Huamo Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of urea purification membrane element in China. If you're going to wholesale bulk urea purification membrane element made in China, welcome to get catalog and price list from our factory. All custom made products are with high quality and competitive price. Also, OEM service is available.
Product Details
Urea purification membrane element is fully compatible with standard 4040-type membrane housings, so it can be directly used in existing urea purification systems without major system modification.
Each element is tested under standard conditions (25°C, 0.48 MPa, 2000 ppm NaCl), with stable performance showing 40–60% salt rejection and 2,250 GPD (8.7 m³/d) permeate flow, ensuring consistent separation and water production.
The membrane is designed with a 34-mil feed spacer and supports up to 41 bar (600 psi) operating pressure, giving it stable performance and good resistance to fouling in industrial urea/DEF applications.
Membrane Element Data
Parameter | Technical Description |
Model | TF4040-UR |
Membrane Type | Spiral-wound |
Active Membrane Area | 82 ft² (7.6 m²), designed to provide high effective filtration surface for stable industrial operation |
Permeate Flow Rate | 2250 GPD (8.7 m³/day), representing nominal production capacity under standard test conditions |
Salt Rejection | 40–60% (NaCl equivalent), optimized for controlled separation in urea solution processing rather than full desalination |
Feed Spacer Design | 34 mil high-flow channel structure ensuring improved hydrodynamic distribution and reduced pressure loss |
RO vs NF, Which Membrane Technology Is Suitable for Urea Solution Purification?
In automotive urea solution and DEF/AdBlue production systems, both reverse osmosis (RO) and nanofiltration (NF) technologies are used for liquid purification, but their separation characteristics and operating objectives are significantly different. Conventional RO membranes are primarily designed for high salt rejection and pure water production, which may also result in excessive urea rejection during processing. In contrast, a specialized urea purification membrane element is engineered to achieve a controlled separation balance, allowing suitable urea permeation while reducing unwanted ionic impurities and maintaining stable solution quality required for industrial urea purification applications.
Compared to standard reverse osmosis (RO) membrane elements, urea membrane elements based on nanofiltration (NF) technology typically exhibit lower pressure drop, more optimized feed flow distribution, and superior fouling resistance when operating within urea concentration systems. Their optimized 34-mil feed spacer structure helps mitigate scaling tendencies and facilitates more stable long-term operation-a feature of particular importance in continuous-process automotive urea production lines. Furthermore, while maintaining high permeate flux and reliable product consistency, NF membranes effectively reduce operational energy consumption and minimize cleaning frequency; for these reasons, urea purification membrane elements utilizing NF technology have emerged as a key solution in numerous modern urea purification and DEF (Diesel Exhaust Fluid) processing systems.
FAQ
Q1. What is the typical lead time for your urea membrane elements?
A: The standard lead time for our urea filter membrane elements depends on the order quantity and production schedule. For our standard TF4040-UR model, the typical lead time for small to medium-sized orders is 3 to 7 business days. Larger-volume or OEM orders may require a longer production cycle, depending on specific customization requirements. We maintain a consistent inventory of our core models to facilitate rapid shipment for urgent automotive urea (AUS32/AdBlue) projects.
Q2. Do your urea purification membranes come with relevant certificates?
A: Yes, all our membrane elements are shipped with standard factory quality documentation. Every batch is manufactured under controlled processes and undergoes performance verification prior to shipment. Standard documentation includes quality inspection reports, performance test data, and manufacturing traceability records. Upon request-and subject to specific project requirements and target market regulations-we can also provide additional compliance certificates.
Q3. Are your urea filtration membranes based on RO (Reverse Osmosis) or NF (Nanofiltration) technology?
A: This membrane is based on a specialized Nanofiltration (NF-oriented) separation design. It is optimized for the precise removal of ions and the treatment of urea solutions, rather than for complete desalination. Unlike standard RO membranes, this element is designed to strike a balance between permeate flux and selective separation performance; this ensures stable urea quality within industrial systems while maintaining lower operating pressures and enhancing hydraulic efficiency.
Q4. Can your membrane elements directly replace the elements currently installed in our existing system?
A: Yes, the TF4040-UR membrane element is designed to be compatible with standard 4040 spiral-wound membrane housings, making it suitable as a direct replacement in most existing urea purification systems. However, we recommend verifying key operating parameters-such as pressure, recovery rate, and feed water quality-prior to replacement to ensure optimal performance and system stability. In most retrofit scenarios, no significant hardware modifications are required.
Q5. What is the Minimum Order Quantity (MOQ) for custom labeling on the membrane elements?
A: Standard OEM label customization typically supports small-batch production, with a minimum order quantity of 100 units; however, if complete private-label packaging or comprehensive branding solutions are required, a minimum order of 300 units applies. We offer flexible OEM partnership models, including services such as logo printing, label design, and custom packaging tailored specifically for our long-term distribution partners.